Merge pull request 'change-vhost' (#47) from change-vhost into main

Reviewed-on: https://git.deuxfleurs.fr/Deuxfleurs/guichet/pulls/47

5 files changed, 142 insertions, 5 deletions

diff --git a/garage.go b/garage.go
index c43fd5f..7cd879b 100644
--- a/garage.go
+++ b/garage.go
@@ -270,8 +270,9 @@ func handleWebsiteInspect(w http.ResponseWriter, r *http.Request) {
 			_, processErr = ctrl.Patch(bucketName, &WebsitePatch{Size: &user.Quota.WebsiteSizeBursted})
 		case "delete_bucket":
 			processErr = ctrl.Delete(bucketName)
-			http.Redirect(w, r, "/website", http.StatusFound)
-			return
+			if processErr == nil {
+				http.Redirect(w, r, "/website", http.StatusFound)
+			}
 		default:
 			processErr = fmt.Errorf("Unknown action")
 		}
@@ -295,3 +296,51 @@ func handleWebsiteInspect(w http.ResponseWriter, r *http.Request) {
 	tWebsiteInspect := getTemplate("garage_website_inspect.html")
 	tWebsiteInspect.Execute(w, &tpl)
 }
+
+func handleWebsiteVhost(w http.ResponseWriter, r *http.Request) {
+	var processErr error
+
+	user := RequireUserHtml(w, r)
+	if user == nil {
+		return
+	}
+
+	ctrl, err := NewWebsiteController(user)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	bucketName := mux.Vars(r)["bucket"]
+
+	if r.Method == "POST" {
+		r.ParseForm()
+
+		bucket := strings.Join(r.Form["bucket"], "")
+		if bucket == "" {
+			bucket = strings.Join(r.Form["bucket2"], "")
+		}
+
+		view, processErr := ctrl.Patch(bucketName, &WebsitePatch{Vhost: &bucket})
+		if processErr == nil {
+			http.Redirect(w, r, "/website/inspect/"+view.Name.Pretty, http.StatusFound)
+			return
+		}
+	}
+
+	view, err := ctrl.Inspect(bucketName)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	describe, err := ctrl.Describe()
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	tpl := &WebsiteInspectTpl{describe, view, processErr}
+	tWebsiteEdit := getTemplate("garage_website_edit.html")
+	tWebsiteEdit.Execute(w, &tpl)
+}
diff --git a/main.go b/main.go
index 6553bef..39c7f08 100644
--- a/main.go
+++ b/main.go
@@ -161,6 +161,7 @@ func server(args []string) {
 	r.HandleFunc("/website/new", handleWebsiteNew)
 	r.HandleFunc("/website/configure", handleWebsiteConfigure)
 	r.HandleFunc("/website/inspect/{bucket}", handleWebsiteInspect)
+	r.HandleFunc("/website/vhost/{bucket}", handleWebsiteVhost)
 
 	r.HandleFunc("/invite/new_account", handleInviteNewAccount)
 	r.HandleFunc("/invite/send_code", handleInviteSendCode)
diff --git a/templates/garage_website_edit.html b/templates/garage_website_edit.html
new file mode 100644
index 0000000..f41d30b
--- /dev/null
+++ b/templates/garage_website_edit.html
@@ -0,0 +1,72 @@
+{{define "title"}}Créer un site web |{{end}}
+
+{{define "body"}}
+<div class="d-flex">
+    <h4>Modifier le nom de domaine</h4>
+    <a class="ml-auto btn btn-link" href="/website/configure">Mes identifiants</a>
+    <a class="ml-4 btn btn-info" href="/website">Mes sites webs</a>
+</div>
+
+<div class="row mt-3">
+	<div class="col-md-12">
+	{{if .Err}}
+		<div class="alert alert-danger">{{ .Err.Error }}</div>
+  	{{end}}
+	</div>
+</div>
+
+<ul class="nav nav-tabs" id="proto" role="tablist">
+    <li class="nav-item">
+        <a class="nav-link active" id="dnsint-tab" data-toggle="tab" href="#dnsint" role="tab" aria-controls="dnsint" aria-selected="true">Je n'ai pas de nom de domaine</a>
+    </li>
+    <li class="nav-item">
+        <a class="nav-link" id="dnsext-tab" data-toggle="tab" href="#dnsext" role="tab" aria-controls="dnsext" aria-selected="false">Utiliser mon propre nom de domaine</a>
+    </li>
+</ul>
+
+<div class="tab-content" id="protocols">
+
+    <div class="tab-pane fade show active" id="dnsint" role="tabpanel" aria-labelledby="dnsint-tab">
+        <form method="POST" class="mt-4">
+            <div class="form-row">
+                <div class="form-group col-md-6">
+                    <label for="bucket">Sous-domaine désiré :</label>
+                    <input type="text" id="bucket" name="bucket" placeholder="mon-site" class="form-control" value="" onkeyup="document.getElementById('url').value = `https://${document.getElementById('bucket').value}.web.deuxfleurs.fr`" />
+                </div>
+                <div class="form-group col-md-6">
+                    <label for="url">Votre site sera accessible à l'URL suivante :</label>
+                    <input type="text" id="url" disabled="true" name="url" class="form-control" value="https://mon-site.web.deuxfleurs.fr" />
+                </div>
+            </div>
+            <div class="mt-4">
+                <p>La première fois que vous chargerez votre site web, une erreur de certificat sera renvoyée. C'est normal, il faudra patienter quelques minutes le temps que le certificat se génère.</p>
+            </div>
+            <button type="submit" class="btn btn-primary">Modifier le nom de domaine</button>
+        </form>
+    </div>
+    <div class="tab-pane fade show" id="dnsext" role="tabpanel" aria-labelledby="dnsext-tab">
+        <form method="POST" class="mt-4">
+            <div class="form-row">
+                <div class="form-group col-md-6">
+                    <label for="bucket2">Votre nom de domaine :</label>
+                    <input type="text" id="bucket2" name="bucket2" placeholder="example.com" class="form-control" value="" onkeyup="document.getElementById('url2').value = `https://${document.getElementById('bucket2').value}`" />
+                </div>
+                <div class="form-group col-md-6">
+                    <label for="url2">Votre site sera accessible à l'URL suivante :</label>
+                    <input type="text" id="url2" disabled="true" name="url2" class="form-control" value="https://example.com" />
+                </div>
+            </div>
+            <div>
+                <p>Vous devez éditer votre zone DNS, souvent gérée par votre bureau d'enregistrement, comme Gandi, pour la faire pointer vers Deuxfleurs. Si vous utilisez un sous domaine (eg. <code>site.example.com</code>), une entrée <code>CNAME</code> est appropriée :</p>
+                <pre>site   CNAME    3600    garage.deuxfleurs.fr.</pre>
+                <p>Si vous utilisez la racine de votre nom de domaine (eg. <code>example.com</code>, aussi appelée APEX), la solution dépend de votre fournisseur DNS, il vous faudra au choix une entrée <code>ALIAS</code> ou <code>CNAME</code> en fonction de ce que votre fournisseur supporte :</p>
+                <pre>@      ALIAS    3600    garage.deuxfleurs.fr.</pre>
+                <p>La première fois que vous chargerez votre site web, une erreur de certificat sera renvoyée. C'est normal, il faudra patienter quelques minutes le temps que le certificat se génère.</p>
+            </div>
+            <div class="mt-4">
+            <button type="submit" class="btn btn-primary">Modifier le nom de domaine</button>
+        </form>
+
+    </div>
+</div>
+{{end}}
diff --git a/templates/garage_website_inspect.html b/templates/garage_website_inspect.html
index 37142df..a8f463d 100644
--- a/templates/garage_website_inspect.html
+++ b/templates/garage_website_inspect.html
@@ -48,7 +48,7 @@
 		<h5 class="mt-3">Quotas</h5>
 		<div class="progress mt-3">
 			<div class="progress-bar" role="progressbar" aria-valuenow="{{ .View.Size.Current }}" aria-valuemin="0" aria-valuemax="{{ .View.Size.Max }}" style="width: {{ .View.Size.Percent }}%; min-width: 2em;">
-				{{ .View.Size.Ratio }}%
+				{{ .View.Size.Percent }}%
   			</div>
 		</div>
 
@@ -63,7 +63,7 @@
 		<form action="" method="post">
 			<div class="btn-group" role="group" aria-label="Actions sur le site web">
   				<button class="btn btn-secondary" name="action" value="increase_quota">Augmenter le quota</button>
-  				<a class="btn btn-secondary disabled">Changer le nom de domaine</a>
+				<a class="btn btn-secondary" href="/website/vhost/{{ .View.Name.Pretty }}">Changer le nom de domaine</a>
   				<button class="btn btn-danger" name="action" value="delete_bucket">Supprimer</button>
 			</div>
 		</form>
diff --git a/website.go b/website.go
index 2cad12c..74daf89 100644
--- a/website.go
+++ b/website.go
@@ -17,6 +17,8 @@ var (
 	ErrCantConfigureBucket          = fmt.Errorf("Unable to configure the bucket (activating website, adding quotas, etc.)")
 	ErrBucketDeleteNotEmpty         = fmt.Errorf("You must remove all the files before deleting a bucket")
 	ErrBucketDeleteUnfinishedUpload = fmt.Errorf("You must remove all the unfinished multipart uploads before deleting a bucket")
+	ErrCantChangeVhost              = fmt.Errorf("Can't change the vhost to the desired value. Maybe it's already used by someone else or an internal error occured")
+	ErrCantRemoveOldVhost           = fmt.Errorf("The new vhost is bound to the bucket but the old one can't be removed, this is an internal error")
 )
 
 type WebsiteId struct {
@@ -141,12 +143,24 @@ func (w *WebsiteController) Patch(pretty string, patch *WebsitePatch) (*WebsiteV
 	ur := garage.NewUpdateBucketRequest()
 	ur.SetQuotas(*urQuota)
 
-	// Call garage
+	// Call garage "update bucket" function
 	binfo, err = grgUpdateBucket(website.Internal, ur)
 	if err != nil {
 		return nil, ErrCantConfigureBucket
 	}
 
+	// Update the alias if the vhost field is set and different
+	if patch.Vhost != nil && *patch.Vhost != "" && *patch.Vhost != pretty {
+		binfo, err = grgAddGlobalAlias(website.Internal, *patch.Vhost)
+		if err != nil {
+			return nil, ErrCantChangeVhost
+		}
+		binfo, err = grgDelGlobalAlias(website.Internal, pretty)
+		if err != nil {
+			return nil, ErrCantRemoveOldVhost
+		}
+	}
+
 	return NewWebsiteView(binfo), nil
 }
 
@@ -233,4 +247,5 @@ func NewWebsiteView(binfo *garage.BucketInfo) *WebsiteView {
 
 type WebsitePatch struct {
 	Size *int64 `json:"quota_size"`
+	Vhost *string `json:"vhost"`
 }